Silicone Quaternium-16/Glycidoxy Dimethicone Crosspolymer

What is Silicone Quaternium-16/Glycidoxy Dimethicone Crosspolymer?

Silicone Quaternium-16/Glycidoxy Dimethicone Crosspolymer is a lab-synthesized hybrid polymer combining a cationic quaternary silicone (Silicone Quaternium-16) with an epoxy-reactive dimethicone (Glycidoxy Dimethicone). Primarily featured in hair care products such as conditioners, leave-ins, and styling aids, it functions through its positively charged groups that attract to hair's negative surface. This adhesion minimizes friction, static buildup, and tangles while depositing a thin, elastic film. The film's properties deliver gloss by reflecting light and support style retention against humidity and movement, all with a non-greasy texture that avoids weighing hair down. Its crosspolymer design balances conditioning gentleness with durable fixation in rinse-off and leave-on formulas.

Comedogenic Rating 0/5 Low risk of clogging pores
EWG Safety Rating 1 View on EWG →

Roles in Formulation

This ingredient serves the following purposes in cosmetic formulations:

Hair conditioning
Improves softness, shine, and manageability by reducing friction and static; commonly achieved with cationic agents, silicones, oils, or conditioning polymers.
Hair fixing
Improves style retention by depositing film-forming polymers that hold hair in place while balancing stiffness, flexibility, and humidity resistance.
Hair fixative
Provides style hold by forming a film on hair, helping maintain shape, reduce frizz, and improve durability in sprays, gels, and mousses.

Benefits

Boosts hair smoothness and luster by aligning cuticles and reflecting light.

Eases combing and reduces flyaways via antistatic action.

Delivers flexible hold for hairstyles that endure daily wear.

Who It's For

A quick guide for who this ingredient may suit (and who should be cautious).

Who May Benefit Who Should Avoid
Individuals with coarse or frizzy hair needing better control.
Users preferring fully natural or silicone-free routines.
People styling hair regularly for humidity resistance.
Anyone experiencing rare silicone sensitivities.
Those desiring lightweight conditioning without residue.
Scalp-sensitive individuals testing new products cautiously.

Safety Notes

  • Low hazard profile suitable for typical cosmetic concentrations.
  • Non-comedogenic, minimizing pore-clogging concerns on scalp or skin.

Frequently Asked Questions about Silicone Quaternium-16/Glycidoxy Dimethicone Crosspolymer

What does it do in hair products?

Conditions by reducing friction, adds shine, and fixes styles with a flexible film.

Is it safe for daily use?

Yes, low irritation potential in standard cosmetic levels for most users.

Does it weigh hair down?

No, its lightweight structure provides benefits without heaviness.